3871963 has 4 divisors (see below), whose sum is σ = 3880080. Its totient is φ = 3863848.

The previous prime is 3871961. The next prime is 3871969. The reversal of 3871963 is 3691783.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3871963 - 2¹ = 3871961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3871961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3295 + ... + 4312.

It is an arithmetic number, because the mean of its divisors is an integer number (970020).

Almost surely, 2^3871963 is an apocalyptic number.

3871963 is a deficient number, since it is larger than the sum of its proper divisors (8117).

3871963 is an equidigital number, since it uses as much as digits as its factorization.

3871963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8116.

The product of its digits is 27216, while the sum is 37.

The square root of 3871963 is about 1967.7304185279. The cubic root of 3871963 is about 157.0279880324.

The spelling of 3871963 in words is "three million, eight hundred seventy-one thousand, nine hundred sixty-three".